feat: Reply suggestion and summary generation using OpenAI (#7029)

Add `reply_suggestions` and `summary_generation` options for OpenAI integration

Fixes: https://linear.app/chatwoot/issue/CW-1595/frontend-for-generating-conversation-summary

Co-authored-by: Nithin David Thomas <1277421+nithindavid@users.noreply.github.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/javascript/dashboard/i18n/locale/en/integrations.json

@@ -84,6 +84,8 @@
     },
     "OPEN_AI": {
       "TITLE": "Improve With AI",
+      "SUMMARY_TITLE": "Summary with AI",
+      "REPLY_TITLE": "Reply suggestion with AI",
       "SUBTITLE": "An improved reply will be generated using AI, based on your current draft.",
       "TONE": {
         "TITLE": "Tone",